Borehole/Well Accessories TRIZ Cases

A taper tap engages stuck equipment while engagement slips lock onto the object for secure retrieval.

Fluid-actuated piston extends cutter blades for tubular cutting, eliminating return springs to reduce device complexity.

A receiving container encloses drill cores in a pressure-tight manner on the base frame underwater.

Computational scoring system evaluates buildup stability and supercharge potential to replace subjective human judgment in wellbore data assessment.

A sealing ring seat protects the thrust ball bearing from drilling fluid, preventing seizure and maintaining single action performance.

An orbiting cutting blade forms a partial slot in a tubular to sever an external control line, preventing interference with subsequent fishing operations.

Radial expansion anchors coiled tubing to well casing, mitigating reactionary forces during milling operations.

Computational models estimate rock density and strength from drilling data to minimize stuck pipe incidents and reduce non-productive times during operations.

Hydraulic bi-parallelogram arms extend detectors to contact the well wall, preventing sticking and enabling accurate fluid sampling.

Dissolving captured CO2 in alkaline fluids eliminates buoyancy reversal risks while maintaining high storage density.

Heating projector reduces heavy oil viscosity while controller maintains temperature limits to prevent phase separation and chemical alteration.

Complementary blade profiles engage tubular string grooves to resolve positioning precision limits in heavy-walled members.

A pressure equalizer balances dual flowlines via a piston, reducing pump complexity.

Chemical dissolution of a degradable casing section eliminates milling cuttings and reduces tool trips during sidetracking operations.

A hybrid downhole force generator uses a hydrostatic pressure actuated stroke amplifier to extend piston travel.

Segmented depth increments filter noise from instantaneous measurements, enabling reliable real-time monitoring and reducing equipment wear.

A downhole impact tool accumulates mechanical energy and releases high-impact force to shift stuck valves.

An inductive coil converts mechanical oscillation of a downhole magnetic element into electrical energy to power sensors and valves despite low fluid rates.

Dual probe formation evaluation system directs fluid into sample and storage chambers using separate pumps, reducing sampling time and pressure kick-backs.

Segmented release lugs with varying projection widths prevent misalignment, maintaining reliability without increasing jar length.

A hybrid dump bailer uses a pressure pulse piston to discharge cement slurry from wellbores.

Nested containment and fluid-filled chambers preserve in-situ pressure, preventing sample damage during retrieval.

Electrohydraulic shock waves deform metal patches to seal wellbore openings, replacing complex mechanical tools with rapid electrical discharge.

Concentric heating elements conductively warm subterranean formations through a sampling probe external surface to reduce heavy oil viscosity.

Joule heating disintegrates an electrical resistor to release a mechanical constraint, enabling remote actuation of well tools without physical access.

A gas-operated setting tool uses a shear ring to prevent axial movement of the outer assembly until the power charge fires.

Segmented cutting inserts initiate radial cuts and extend axial milling, reducing operational time during section milling operations.

A retrieval system safety unit surrounds the tool string to provide fixed support during downhole operations.

Segmented shear planes provide high axial force capacity while allowing low-torque rotational separation of the release device.

Independent drive mechanisms rotate and radially displace the cutting element, minimizing flexing and energy consumption during tubular cutting.

Balanced seal areas eliminate hydraulic complexity, enabling accurate formation fluid mobility measurements.

An integrated sidewall coring system performs in-situ flooding experiments to infer fluid saturation changes without retrieving samples.

Continuous agitation prevents fluid segregation during pumping, ensuring accurate identification of gas, oil, or water types in mixed samples.

A tubular casing removal tool uses a nozzle array to impinge molten thermite fuel onto wellbore steel.

Hydraulic jacking expands slips to push cut casing upward, eliminating surface pulling forces that damage equipment.

A retractable upper head assembly uses a fluid control system to increase flow through a bypass chamber.

Compressed Belleville springs within a split housing replace latch bars, eliminating sliding friction and wear while ensuring reliable mandrel release.

Segmented locator design resolves deployment friction versus locating reliability by using dynamic resistance.

A drilling control system enforces safeguard envelopes to restrict controller outputs within safe operational boundaries.

Axial movement of the spear point prevents jamming while detent mechanisms ensure reliable latching engagement.

Interchangeable profile inserts create specific key profiles that resolve tool orientation difficulties in multilateral junction construction.

Reduced helix diameter and expansion blades allow grapple expansion to catch larger fish while maintaining structural integrity against high stress.